正确答案: C
turning
题目:After "F.W.E" is given, the air system is shut down, the () gear put in, all drains and indicator cocks opened, and the cooling water kept running.
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[单选题]桨叶经焊补修理后,为保证焊补质量应进行()等处理。Ⅰ.磨光;Ⅱ.着色探伤;Ⅲ.测螺距;Ⅳ.静平衡试验;Ⅴ.退火。
Ⅰ+Ⅱ+Ⅴ
[单选题]An electrically driven automatically operating auxiliary blower is provided for slow speed and () of a low speed diesel engine.
manoeuvring operations